diff --git a/Cargo.lock b/Cargo.lock
index 4cb372ae5ce..d9be02d5450 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "abscissa_core"
 version = "0.5.2"
@@ -1189,9 +1191,9 @@ checksum = "1ab52be62400ca80aa00285d25253d7f7c437b7375c4de678f5405d3afe82ca5"
 
 [[package]]
 name = "once_cell"
-version = "1.4.0"
+version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
+checksum = "18a6dbe30758c9f83eb00cbea4ac95966305f5a7772f3f42ebfc7fc7eddbd8e1"
 
 [[package]]
 name = "opaque-debug"
diff --git a/zebra-state/Cargo.toml b/zebra-state/Cargo.toml
index 46123e1bef8..4dc4337ca93 100644
--- a/zebra-state/Cargo.toml
+++ b/zebra-state/Cargo.toml
@@ -24,4 +24,4 @@ tracing = "0.1.16"
 tracing-futures = "0.2.4"
 tempdir = "0.3.7"
 color-eyre = "0.5"
-once_cell = "1.4"
+once_cell = "1.13"
diff --git a/zebrad/Cargo.toml b/zebrad/Cargo.toml
index 421bfcb0201..62dc693e1ba 100644
--- a/zebrad/Cargo.toml
+++ b/zebrad/Cargo.toml
@@ -41,4 +41,4 @@ zebra-consensus = { path = "../zebra-consensus/" }
 
 [dev-dependencies]
 abscissa_core = { version = "0.5", features = ["testing"] }
-once_cell = "1.4"
+once_cell = "1.13"